EP4064973A1 - Manschettenteil und messvorrichtung - Google Patents
Manschettenteil und messvorrichtungInfo
- Publication number
- EP4064973A1 EP4064973A1 EP20817259.3A EP20817259A EP4064973A1 EP 4064973 A1 EP4064973 A1 EP 4064973A1 EP 20817259 A EP20817259 A EP 20817259A EP 4064973 A1 EP4064973 A1 EP 4064973A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cuff
- receiving
- fluid
- elastic layer
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/02233—Occluders specially adapted therefor
- A61B5/02241—Occluders specially adapted therefor of small dimensions, e.g. adapted to fingers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
- A61B5/02255—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds the pressure being controlled by plethysmographic signals, e.g. derived from optical sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/702—Posture restraints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0443—Modular apparatus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
Definitions
- the present invention relates to a cuff part, in particular for a non-invasive blood pressure measuring device, as well as a measuring device for parallel or alternating continuous determination of the intra-arterial blood pressure on at least two fingers of one hand.
- the (in particular arterial) blood pressure of a patient is one of the most important measured variables in medical technology, and the known associated, in particular also non-invasive, measurement technology is extremely diverse. This applies above all to measurement technology for the continuous monitoring of blood pressure over a longer period of time, for example in intensive care medicine but also in emergency medicine and during surgical interventions.
- the blood pressure measuring device is often attached to the patient's limbs, for example an applanation tonometric sensor in the radial artery on the forearm or a photoplethysmographically based on the so-called ⁇ sogn.
- "Vascular Unloading Technique" finger sensor operated according to Pen z.
- Pressure measuring devices are for example from US 4,406,289, US 4,524,777, US 4,726,382, WO 2010/050798 A1, WO 2000/059369 A1, WO 2011/045138 A1, WO 2011/051819 A1, WO 2011/051822 A1, WO 2012/032413 A1 and WO 2017/143366 Al known.
- near-infrared light is radiated into a finger and the pulsatile (pulse-shaped) blood flow (actually the changing blood volume) in the finger is determined using the non-absorbed portion captured by a photodetector.
- the (near-infrared) light is usually generated with the help of one or more light-emitting diodes (LED) that work with one or more wavelengths and with the help of one or more light-sensitive receiver diodes (photodiodes) detected.
- LED light-emitting diodes
- photodiodes light-sensitive receiver diodes
- a control system now keeps the plethysmographically registered flow (or the detected blood volume) and thus the resulting photoplethysmographic signal (volume signal v (t)) constant by applying counter pressure in a cuff (cuff pressure) pc (t) on the finger.
- This counter pressure pc (t) is usually regulated by a fast valve or valve system in conjunction with a pump.
- the related control of the valve or the valve system is carried out by a control unit, which is preferably implemented with a microcomputer.
- the main input signals are the PPG signal v (t) and the cuff pressure pc (t).
- the pressure pc (t) required to keep the PPG signal v (t) constant now corresponds to the intra-arterial blood pressure pa (t).
- the cuff pressure pc (t) can be changed at least as quickly as the intra-arterial blood pressure pa (t) changes, so that the real-time condition is fulfilled.
- the upper limit frequency of pa (t) and thus the highest rate of pressure change is above at least 20 Hz, which is definitely a challenge for a pressure control system. It follows from this that the pressure regulation by means of a valve or valve system is advantageously located in the immediate vicinity of the cuff. If the air lines are too long, there is a risk of losing this cut-off frequency condition due to the low-pass effect of the lines.
- a mechanical valve is known from EIS 4,406,289 which regulates the counter pressure in the finger cuff with the desired accuracy when it is supplied with a linear pump.
- the valve is housed in a housing on the distal forearm and thus supplies the finger cuff with the pressure pc (t) via a short tube.
- No. 4,524,777 describes a pressure generation system for the Vascular Unloading Technique, a constant cuff pressure Pc also being generated with a linear pump, which is superimposed with pressure fluctuations Apc (t) from a parallel-connected "Shaker” or a “Driving Actuator”.
- US Pat. No. 4,726,382 discloses a finger cuff for the Vascular Unloading Technique which has hose connections for the supply of the cuff pressure pc (t). The length of the Air hoses extend to the pressure generation system, which in turn is attached to the distal forearm.
- WO 2000/059369 A1 also describes a pressure generation system for the Vascular Unloading Technique.
- the valve system here consists of a separate inlet and a separate outlet valve. While a relatively linear proportional pump must be used in US Pat. No. 4,406,289 and US Pat. No. 4,524,777, this system allows the use of simple, inexpensive pumps, since disruptive harmonics can be eliminated by the arrangement of the valves. Furthermore, the energy consumption of the simple pump can be significantly reduced by the valve principle.
- a system for the vascular unloading technique is known from WO 2004/086963 A1, in which the blood pressure can be continuously determined in one finger, while the measurement quality is checked in the adjacent finger (“watch dog” function). After a while, the system automatically changes the "measuring finger” with the "monitoring finger”.
- WO 2005/037097 A1 describes a control system for the Vascular Unloading Technique with several interlinked control loops.
- WO 2010/050798 A1 discloses a pressure generation system (“front end”) attached to the distal forearm with only one valve, to which a finger cuff for the vascular unloading technique can be attached.
- WO 2011/051819 A1 discloses an implementation of the Vascular Unloading Technique which has been improved by means of digital electronics to increase stability and for further miniaturization.
- WO 2011/051822 A1 describes a method for the vascular unloading technique in which the measured signals v (t) and pc (t) are processed to increase long-term stability and to determine further hemodynamic parameters.
- a method for eliminating effects resulting from vasomotor changes in the finger arteries and a method for determining cardiac output (Cardiac Output CO) are disclosed.
- WO 2012/032413 A1 describes novel finger sensors that have a disposable part for single use. For hygienic reasons, the cuff that comes into contact with the finger is housed in the disposable part, whereas the associated pressure generation and pressure control system is housed in a reusable part. Accordingly, a separable pneumatic connection between the disposable part and the reusable part must be provided here.
- the pressure generation and pressure control system in the prior art is attached to the distal forearm, proximal to the wrist, which has significant disadvantages: This point is often used for intravenous access and the intra-arterial access at the distal end of the radial terry should also be used be free for emergencies. Such accesses can be blocked by the pressure generation and pressure control system and its attachment. In addition, the system can slip or tilt during operation. This can have a detrimental effect on the fit of the sensors. The fit of the sensors would also improve if the finger to be measured or the corresponding hand is in a certain rest position.
- the document WO 2017/143366 A1 proposes a measuring system for the continuous determination of the intra-arterial blood pressure on at least one finger of a hand, with at least one finger sensor, with a plethysmographic system, with at least one light source, preferably LED, with one or several wavelengths and at least one light sensor and at least one inflatable cuff, as well as with a pressure generation system with at least one valve controlled in real time with the aid of the plethysmographic system for generating a pressure in the cuff that essentially corresponds to the intra-arterial blood pressure in the finger, wherein the measuring system has a housing with a surface as Support surface for the at least one finger and the adjacent areas of the palm is used.
- the hand rests here on a support under which there are essential components that were attached to the forearm in conventional systems.
- the cuff is accommodated in a disposable part that can be separated from the housing (and thus from the hand rest).
- a separable pneumatic connection between the disposable part and the reusable part must again be provided.
- cuff cushions which are usually designed as a curved applied flexible cushion (for example made of PVC) or swim ring or donut-shaped ring cushions and exert (counter) pressure on the finger inserted into the finger cuff, are connected to the Pressure generation system connected.
- a cuff part which has at least two ring-like Pick-up tubes for picking up a section of a respective finger of a hand passed through the pick-up tube, in each case at least one cuff pad which is arranged in each of the pick-up tubes and can be filled with a fluid, in particular air, and at least one respective fluid supply to the cuff pad or the cuff pad stem of each of the pick-up tubes , wherein the receiving tubes are formed in a common receiving body, and the fluid supply lines are formed as hose-free channels in the receiving body.
- Manufacturing processes that can be easily automated, in particular (injection) casting and (CNC) milling processes, can thus advantageously be used for production.
- the receiving body has a base body, which has recesses corresponding to the channels, and a cover that is connected to the base body and closes off at least one of the channels to the outside.
- the cover can for example be welded or glued to the base body.
- Advantageously suitable materials for the base body as well as for the cover can, for example, ABS (acrylonitrile-butadiene-styrene), PC-ABS, SAN (styrene-acrylonitrile), PBT (polybutylene terephthalate), PC (polycarbonate), PS-HI (polystyrene), Polyester (PET) as well as PVC.
- the base body can also be composed of two or more parts.
- the base body can have an injection-molded part, in particular made of plastic.
- each of the cuff pads has a hard-elastic layer that is inserted into the receiving tube in a manner adjacent to the receiving body, and a soft-elastic layer for pressing against the hard-elastic layer at its edges in an airtight manner (e.g. by welding, gluing or laminating) on the respective finger, wherein the cuff pad between the hard-elastic and the soft-elastic layer can be filled with the fluid.
- a cuff pad can be manufactured, for example, like a soft blister pack known per se from the prior art.
- the layers can, but do not have to, each have multiple layers.
- the layer materials can advantageously per se Plastic and composite materials known from the prior art are suitable, in particular PET (polyethylene terephthalate), PET-G for the hard elastic layer and PUR (polyurethane), PVC (polyvinyl chloride), PA (polyamide) and coextrusion films (PA-PE, PP-PA -PE, PE-PET) for the soft elastic layer.
- PET polyethylene terephthalate
- PET-G for the hard elastic layer
- PUR polyurethane
- PVC polyvinyl chloride
- PA polyamide
- coextrusion films PA-PE, PP-PA -PE, PE-PET
- An access opening for the fluid can simply be punched out in the hard-elastic layer so that it is flush with a corresponding opening in the channel of the associated fluid supply (or at least overlaps).
- the hard-elastic layer resting on the receiving body does not deform any further.
- the bulging of the preformed, flexible layer takes place through the application of fluid pressure via the fluid supply
- the hard-elastic layer is preferably glued into the respective receiving tube, for example by means of a double-sided adhesive tape or a hotmelt adhesive.
- the cuff part preferably has a connection assigned to the respective channel for feeding the fluid into the cuff part.
- Fluid pressure in particular air pressure, can thus be applied to the cuff pads independently of one another
- connection can be a valve connection.
- a valve device can be formed in the cuff part, or a valve function results in cooperation with a fluid connection of an associated base part with the pressure supply.
- a valve tappet and a resiliently mounted closure body can interact here.
- a design with a valve connection is particularly suitable when the sleeve part is replaceable, in particular as a disposable part.
- Interchangeable cuff parts are generally advantageous for adapting to different hand or finger sizes and for reasons of hygiene.
- connection preferably has a sealing element which prevents fluid from escaping.
- at least two of the connections can be arranged one behind the other with respect to the direction of the intended insertion of the fingers into the receiving tubes, ie parallel to the axial direction of the receiving tubes, either in alignment or possibly also slightly offset.
- the channel arrangement can thus be implemented in a space-saving manner with regard to the required width of the sleeve part. If the channels are arranged between the fingers, this avoids in particular that the fingers have to be spread too far.
- a measuring device for the parallel or alternating continuous determination of the intra-arterial blood pressure on at least two fingers of a hand, which has a base part, a cuff part that can be connected to the base part without tools and separated from the base part without tools, according to one of the embodiments described above , a radiation source for emitting light into the respective finger through an optical emission surface, a photodetector for detecting a portion of the light captured by an optical collector surface that is not absorbed in the respective finger and a pressure control that is at least partially arranged in the base part and can be connected to the connections of the cuff part System for regulating a fluid pressure in the respective cuff pad as a function of the detected non-absorbed portion of the light.
- an exchangeable design of the cuff part in particular also as a disposable part, is generally advantageous for adaptation to different hand or finger sizes and for reasons of hygiene.
- FIG. 1 shows a measuring device according to the invention in a side view, a cuff part having an ergonomic hand rest and a finger receiving part being placed on a base part containing a pressure control system,
- FIG. 2 shows a perspective view of the measuring device from FIG. 1 obliquely from above
- FIG. 3 shows a perspective view of the measuring device from FIG. 1 obliquely from below
- FIG. 4 shows a cuff part like the one shown in FIG. 3 obliquely from below, but without an associated base part, the cuff pads not being shown,
- FIG. 5a shows a view of the measuring device from FIG. 1 from the rear, i.e. from the side of the palm rest (from the left in FIG. 1),
- FIG. 5b shows a sectional illustration of a detail of the cuff part of the measuring device shown in FIG. 5a
- the sectional plane is indicated in the top view of FIG. 6a of the cuff part by the broken line AA '
- FIG. 5c shows a sectional illustration of a detail of the cuff part of the measuring device shown in FIG. 5a
- the sectional plane parallel to FIG. 5b is indicated in the plan view of FIG. 6a of the cuff part by the broken line BB '
- FIG. 6 a shows the cuff part of the device from FIGS. 5 a-5 c in FIG
- FIG. 6b shows the sleeve part of the device from FIGS. 5a-5c in FIG.
- FIG. 7 shows a possible valve device for the connections for the fluid supply, the valve device being shown once in the open and once in the closed state,
- FIG. 8a shows a cuff pad prior to installation, the direction of view pointing diagonally to the molded soft elastic layer
- FIG. 8b shows the cuff pad from FIG. 8a, which is curved as in the installed position, the viewing direction pointing diagonally to the molded, flexible layer,
- FIG. 8c shows the still uncurved cuff pad from FIG. 8a, the direction of view pointing obliquely to the hard-elastic layer
- FIG. 8d shows the curved cuff pad from FIG. 8b, the direction of view pointing obliquely to the hard-elastic layer
- the blood pressure measuring device 1 is designed as a photoplethysmographic measuring system which functions according to the so-called "Vascular Unloading Technique". Metrological components, ie in particular optical and electronic components as well Mechanical components of the pressure generation and pressure control system accommodated in the base part 3 can in principle be implemented in a manner similar to the prior art mentioned at the beginning.
- the cuff part placed on the base part 3 has an ergonomic palm rest 4, an ergonomic finger rest 6 divided by a web 5, and the receiving part 7.
- the receiving part 7 is designed, as in the perspective view of FIG. 2 (viewing direction diagonally from the top right in FIG. 1) to receive two fingers, which makes it possible to measure alternately on both fingers.
- the cuff part is
- the pressure control system in the base part 3 is supplied with compressed air via the cable 8, which is attached diagonally to the side and points in the direction of the forearm when the hand is placed as intended, and the cable 8 also serves to supply energy for the pressure control system (not shown), light sources (not shown) and photo detectors not shown) or associated control, amplifier and evaluation circuits in the measuring device E Measurement data can be output via a suitable electronic interface through the cable 8 to a patient monitor.
- the lateral attachment of the cable 8, pointing in the direction of the forearm when the hand is properly placed, has the advantage that the cable can be guided along the patient's arm, but the area of the wrist with tendons and vessels does not rub against the cable 8, and in particular the carpal tunnel is spared becomes.
- the two inflatable cuff pads 10 arranged in the receiving tubes 9 are each connected via a connection 11 to the interface between the cuff part 2 and the base part
- connection 11 is covered by the cross member 12, which carries light guides 13 through which light from the light sources arranged in the base part 3 to the fingers or from the fingers to the ones in the base part 3 arranged photosensors is conducted.
- a valve device is preferably located at connection 11, so that connection 11 on the base part ends flush with the housing of base part 3 when base part 3 and sleeve part 2 are not connected to one another. Such a valve device is shown by way of example in FIG. On the base part side, the fluid passage 15 is closed by means of the spring 14 resiliently mounted valve body 16.
- connection 11 of the sleeve part 2 has a valve tappet 17 which, in the connected state, presses the valve body 16 downwards in order to open the fluid passage 15.
- the seal to the outside takes place via a sealing element 18 designed as an elastic, conical collar.
- the channels 19, which connect the respective connection 11 to the respective cuff pad 20, are formed in the base body 21 of the receiving body 7 made of plastic by means of injection molding and closed to the outside via the welded or glued-on plastic cover 20.
- FIGS. 5b and 5c The guidance of the channels 19 in the base body 21 of the receiving body 7 is illustrated with the aid of the sectional views in FIGS. 5b and 5c together with the top view of FIG. 6a.
- the sectional plane of FIG. 5b is shown as a broken line A-A 'and the sectional plane of FIG. 5c is shown as a broken line B-B' in FIG. 6a.
- connections 11 lie one behind the other in a direction parallel to the axial direction of the receiving tubes 9. From there, the respective channel 19, as can be seen in FIG. 5b, is first led upwards, further diagonally to the side, as shown in FIG. 6a, and finally downwards to the fluid access opening 22 of the respective cuff pad 10, as can be seen from FIG. 5c .
- the fluid access opening 22 is punched into the hard-elastic layer 10a of the cuff pad 10, which is glued to the receiving body 7 for assembly in the respective receiving tube 9.
- the preformed soft elastic layer 10b is airtightly connected to the hard elastic layer 10a at its edges, so that the space between the layers 10a, 10b can be filled with fluid, in particular air, and can be pressurized.
- the cuff pad is shown curved as in the installed position, in FIGS. 8a and 8c it is not bent for illustration before installation.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Physiology (AREA)
- Ophthalmology & Optometry (AREA)
- Dentistry (AREA)
- Physical Education & Sports Medicine (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019008331.8A DE102019008331A1 (de) | 2019-12-01 | 2019-12-01 | Manschettenteil und messvorrichtung |
PCT/EP2020/083969 WO2021110601A1 (de) | 2019-12-01 | 2020-11-30 | Manschettenteil und messvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4064973A1 true EP4064973A1 (de) | 2022-10-05 |
Family
ID=73694985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20817259.3A Pending EP4064973A1 (de) | 2019-12-01 | 2020-11-30 | Manschettenteil und messvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230000374A1 (de) |
EP (1) | EP4064973A1 (de) |
CN (1) | CN115003219A (de) |
DE (1) | DE102019008331A1 (de) |
WO (1) | WO2021110601A1 (de) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8005145A (nl) | 1980-09-12 | 1982-04-01 | Tno | Inrichting voor de indirekte, niet-invasieve, continue meting van de bloeddruk. |
JPS59156325A (ja) | 1983-02-25 | 1984-09-05 | 株式会社 ウエダ製作所 | 間接的血圧測定装置 |
US4726382A (en) | 1986-09-17 | 1988-02-23 | The Boc Group, Inc. | Inflatable finger cuff |
DE69513830T2 (de) * | 1995-10-19 | 2000-04-13 | Hewlett Packard Gmbh | Blutdruck-Messgerät in Modulbauweise |
AT408066B (de) | 1999-03-30 | 2001-08-27 | Juergen Dipl Ing Fortin | Kontinuierliches nicht-invasives blutdruckmessgerät |
DE19963623A1 (de) * | 1999-12-29 | 2001-07-12 | Braun Gmbh | Blutdruckmeßgerät und Verfahren zur Herstellung eines Teileträgers eines Blutdruckmeßgeräts |
AT412613B (de) | 2003-04-01 | 2005-05-25 | Cnsystems Medizintechnik Gmbh | Vorrichtung und verfahren zur kontinuierlichen, nicht-invasiven messung des blutdruckes |
AT412702B (de) | 2003-10-21 | 2005-06-27 | Cnsystems Medizintechnik Gmbh | Vorrichtung und verfahren zur regelung des druckes in einer aufblasbaren manschette eines blutdruckmessgerätes |
WO2010050798A1 (en) | 2008-10-29 | 2010-05-06 | Bmeye B.V. | A blood pressure measurement device, a front end, an inflatable body and a computer program product |
EP2319408A1 (de) | 2009-10-15 | 2011-05-11 | Finapres Medical Systems B.V. | Vorrichtung zur Steuerung des Drucks in einem aufblasbaren Druckkissen |
WO2011051822A1 (en) | 2009-10-29 | 2011-05-05 | Cnsystems Medizintechnik Ag | Apparatus and methods for enhancing and analyzing signals from a continous non-invasive blood pressure device |
JP5865909B2 (ja) | 2010-09-07 | 2016-02-17 | シーエヌシステムズ メディジンテクニク アクチェンゲゼルシャフト | 連続非侵襲的動脈血圧モニタリング用の使い捨て可能且つ取り外し可能なセンサ |
WO2017143366A1 (de) * | 2016-02-22 | 2017-08-31 | Cnsystems Medizintechnik Ag | Verfahren und messsystem zur kontinuierlichen bestimmung des intra-arteriellen blutdruckes |
US10874308B2 (en) * | 2017-09-29 | 2020-12-29 | Fitbit, Inc. | Devices and methods for obtaining pulse information from blood pressure measurements |
-
2019
- 2019-12-01 DE DE102019008331.8A patent/DE102019008331A1/de active Pending
-
2020
- 2020-11-30 US US17/780,948 patent/US20230000374A1/en active Pending
- 2020-11-30 EP EP20817259.3A patent/EP4064973A1/de active Pending
- 2020-11-30 WO PCT/EP2020/083969 patent/WO2021110601A1/de unknown
- 2020-11-30 CN CN202080095180.XA patent/CN115003219A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021110601A1 (de) | 2021-06-10 |
US20230000374A1 (en) | 2023-01-05 |
CN115003219A (zh) | 2022-09-02 |
DE102019008331A1 (de) | 2021-06-02 |
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